/*
  Copyright 2008 Nathan Phillip Brink, Ethan Zonca

  This file is a part of DistRen.

  DistRen is free software: you can redistribute it and/or modify
  it under the terms of the GNU Affero General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  DistRen is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License
  along with DistRen.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef _DISTREN_REMOTEIO_H
#define _DISTREN_REMOTEIO_H

/*
  This file tries to abstract away getting a socket/fd that talks to a remote service
 */

#include <unistd.h>

struct remoteio
{
  int pipe_write;
  int pipe_read;
  
  pid_t child;
};

/* nonzsero return on error */
int remoteio_open(const char *spec, struct remoteio **rem);

/* blocks, returns 0 if len is 0 or on error */
size_t remoteio_read(struct remoteio *rem, void *buf, size_t len);
size_t remoteio_write(struct remoteio *rem, void *buf, size_t len);

/* nonzero return on error */
int remoteio_close(struct remoteio *rem);

#endif